Weather in Belfast in January 2025
- January is usually the coldest month of the year in Belfast;
Average weather
Average temperature in Belfast in January
The expected average maximum temperature in January is +48°F with a maximum of +59°F and a minimum of +30°F.
The average maximum temperature goes down 31% by the end of the month, compared with the beginning of the month, from +59°F to +50°F.
Is Belfast warm or cold in January?
Belfast is typically chill in January.
Maximum temperatures go up compared to the previous month from +46°F to +46°F. The minimum temperature also goes up from +39°F to +37°F.
Pack a jumper and a jacket as there will be cooler temperatures.
January is the coldest month in Belfast, here is the comparison with other months:
Climate in Belfast in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +46°F | +46°F | +46°F | ||||
| Min. temperature | ||||||
| +9°F | +16°F | +19°F | ||||
| Max. temperature | ||||||
| +59°F | +59°F | +59°F | ||||
| Rainfall | ||||||
| 83 mm | 75 mm | 66 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 4 m/s | ||||
| Humidity | ||||||
| 86% | 85% | 82% | ||||
| Air pressure | ||||||
| 1009 HPa | 1010 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 2 | ||||
| Cloudy days | ||||||
| 19 | 20 | 18 | ||||
| Rainy days | ||||||
| 10 | 9 | 8 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
January weather is still as ok as in December. The temperature levels stay the same in the area of +46°F for average maximum temperature during the day. As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 83 mm to 75 mm. It feels drier, as humidity decreases from 86% to 85%. The average wind speed doesn’t change much during January, staying around 4 m/s. The amount of sunny days stay about the same, averaging 2 sunny days during the month.
February brings much the same weather, it remains ok.
Wind
The average wind speed is 5 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Belfast is gradually decreasing during January, going from 8 m/s to 6 m/s over the course of the month.
Rain
How was the weather last January in Belfast?
Climate Change Over the Years
The climate in Belfast in January has not changed that much over the last 43 years.
The average temperature was the lowest in 1979 (+41°F) and the highest in 1989 (+51°F). The driest year was 1997 with only 21 mm of rainfall, and the wettest year was 2014 with 154 mm.
FAQ
Is January a good time to visit Belfast?
Can you sunbathe in Belfast in January?
Is Belfast rainy in January?
Is it sunny in Belfast in January?
Other cities in United Kingdom
Monthly weather in Belfast
Source of the data
For this page, we’ve looked at the typical weather in Belfast, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.